{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:CTKW7AQDQFBMOULVCPHNEBF2JA","short_pith_number":"pith:CTKW7AQD","canonical_record":{"source":{"id":"1708.02848","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2017-08-09T14:01:35Z","cross_cats_sorted":[],"title_canon_sha256":"d9ebde2f724037dc63fddfb3ddf675c0d5859d5f735006199c6c9c8e6c337afc","abstract_canon_sha256":"4cfaf0dc142bd3c7d8d968f8716575c3733c4347d9556b465721cc84dfe8846b"},"schema_version":"1.0"},"canonical_sha256":"14d56f82038142c7517513ced204ba4816abed6cb984e5f80970d117df4004e0","source":{"kind":"arxiv","id":"1708.02848","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02848","created_at":"2026-05-18T00:38:19Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02848v1","created_at":"2026-05-18T00:38:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02848","created_at":"2026-05-18T00:38:19Z"},{"alias_kind":"pith_short_12","alias_value":"CTKW7AQDQFBM","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CTKW7AQDQFBMOULV","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CTKW7AQD","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:CTKW7AQDQFBMOULVCPHNEBF2JA","target":"record","payload":{"canonical_record":{"source":{"id":"1708.02848","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2017-08-09T14:01:35Z","cross_cats_sorted":[],"title_canon_sha256":"d9ebde2f724037dc63fddfb3ddf675c0d5859d5f735006199c6c9c8e6c337afc","abstract_canon_sha256":"4cfaf0dc142bd3c7d8d968f8716575c3733c4347d9556b465721cc84dfe8846b"},"schema_version":"1.0"},"canonical_sha256":"14d56f82038142c7517513ced204ba4816abed6cb984e5f80970d117df4004e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:19.351690Z","signature_b64":"PKlxNCoMyocWCLjqM1/YKHMX29IfIpg0Q6O5BuIOtFR35v52bqoROKSJUg7UFpnTnD0MJptaA9iwG7JsrkXoDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14d56f82038142c7517513ced204ba4816abed6cb984e5f80970d117df4004e0","last_reissued_at":"2026-05-18T00:38:19.351036Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:19.351036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.02848","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:38:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2WN4UVPOay5HQOmn3f86YgXPyq/Ihoep6vei7gkW+cB/Cdm4xbk87mSmqVucrMsC+kCyADq5dvSalWrDUV2VCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T05:14:55.280944Z"},"content_sha256":"ef23045f3d2cc5badf6ec830f340baa16a6740628938ca8f0ae773b069672486","schema_version":"1.0","event_id":"sha256:ef23045f3d2cc5badf6ec830f340baa16a6740628938ca8f0ae773b069672486"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:CTKW7AQDQFBMOULVCPHNEBF2JA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On a gesture-computing technique using electromagnetic waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AP","authors_text":"Hongpeng Sun, Hongyu Liu, Jingzhi Li","submitted_at":"2017-08-09T14:01:35Z","abstract_excerpt":"This paper is concerned with a conceptual gesture-based instruction/input technique using electromagnetic wave detection. The gestures are modelled as the shapes of some impenetrable or penetrable scatterers from a certain admissible class, called a dictionary. The gesture-computing device generates time-harmonic electromagnetic point signals for the gesture recognition and detection. It then collects the scattered wave in a relatively small backscattering aperture on a bounded surface containing the point sources. The recognition algorithm consists of two stages and requires only two incident"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02848","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:38:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l3L17UTQsPbtoegref9zkd/w3CwulMWl0zQaNjWJNb8QP3Xda51962VZjj8PTIshHEKg2J2kieH8gNz+Zh9FBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T05:14:55.281627Z"},"content_sha256":"79030c840f574c6f2e3b277f3e6919af2141aeb01895caca47828e3718f51ae9","schema_version":"1.0","event_id":"sha256:79030c840f574c6f2e3b277f3e6919af2141aeb01895caca47828e3718f51ae9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CTKW7AQDQFBMOULVCPHNEBF2JA/bundle.json","state_url":"https://pith.science/pith/CTKW7AQDQFBMOULVCPHNEBF2JA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CTKW7AQDQFBMOULVCPHNEBF2JA/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-10T05:14:55Z","links":{"resolver":"https://pith.science/pith/CTKW7AQDQFBMOULVCPHNEBF2JA","bundle":"https://pith.science/pith/CTKW7AQDQFBMOULVCPHNEBF2JA/bundle.json","state":"https://pith.science/pith/CTKW7AQDQFBMOULVCPHNEBF2JA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CTKW7AQDQFBMOULVCPHNEBF2JA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CTKW7AQDQFBMOULVCPHNEBF2JA","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4cfaf0dc142bd3c7d8d968f8716575c3733c4347d9556b465721cc84dfe8846b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2017-08-09T14:01:35Z","title_canon_sha256":"d9ebde2f724037dc63fddfb3ddf675c0d5859d5f735006199c6c9c8e6c337afc"},"schema_version":"1.0","source":{"id":"1708.02848","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02848","created_at":"2026-05-18T00:38:19Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02848v1","created_at":"2026-05-18T00:38:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02848","created_at":"2026-05-18T00:38:19Z"},{"alias_kind":"pith_short_12","alias_value":"CTKW7AQDQFBM","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CTKW7AQDQFBMOULV","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CTKW7AQD","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:79030c840f574c6f2e3b277f3e6919af2141aeb01895caca47828e3718f51ae9","target":"graph","created_at":"2026-05-18T00:38:19Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"This paper is concerned with a conceptual gesture-based instruction/input technique using electromagnetic wave detection. The gestures are modelled as the shapes of some impenetrable or penetrable scatterers from a certain admissible class, called a dictionary. The gesture-computing device generates time-harmonic electromagnetic point signals for the gesture recognition and detection. It then collects the scattered wave in a relatively small backscattering aperture on a bounded surface containing the point sources. The recognition algorithm consists of two stages and requires only two incident","authors_text":"Hongpeng Sun, Hongyu Liu, Jingzhi Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2017-08-09T14:01:35Z","title":"On a gesture-computing technique using electromagnetic waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02848","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ef23045f3d2cc5badf6ec830f340baa16a6740628938ca8f0ae773b069672486","target":"record","created_at":"2026-05-18T00:38:19Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4cfaf0dc142bd3c7d8d968f8716575c3733c4347d9556b465721cc84dfe8846b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2017-08-09T14:01:35Z","title_canon_sha256":"d9ebde2f724037dc63fddfb3ddf675c0d5859d5f735006199c6c9c8e6c337afc"},"schema_version":"1.0","source":{"id":"1708.02848","kind":"arxiv","version":1}},"canonical_sha256":"14d56f82038142c7517513ced204ba4816abed6cb984e5f80970d117df4004e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14d56f82038142c7517513ced204ba4816abed6cb984e5f80970d117df4004e0","first_computed_at":"2026-05-18T00:38:19.351036Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:19.351036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PKlxNCoMyocWCLjqM1/YKHMX29IfIpg0Q6O5BuIOtFR35v52bqoROKSJUg7UFpnTnD0MJptaA9iwG7JsrkXoDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:19.351690Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.02848","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef23045f3d2cc5badf6ec830f340baa16a6740628938ca8f0ae773b069672486","sha256:79030c840f574c6f2e3b277f3e6919af2141aeb01895caca47828e3718f51ae9"],"state_sha256":"55a36755cc3cd1b5aa4d3e19ebae7e60fe032af4e07fffce927e34ca7bb440d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CT6XBzhs87JYqhajElMTrLtHQGrS8arWIj70CQrYwP8xMI9TM5tyRDdSwcHE+t1hqJdaGVjlm6KCKcuI6/xcDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T05:14:55.285641Z","bundle_sha256":"de23b01a37bd42f7b9a51da27176b43505be9d618b8f47531e07cc8cdaa2c550"}}